spacemacs/layers/+tools/languagetool/funcs.el

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;;; funcs.el --- languagetool layer packages file for Spacemacs.
;;
;; Copyright (c) 2012-2017 Sylvain Benner & Contributors
;;
;; Author: Robbert van der Helm <mail@robbertvanderhelm.nl>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defun spacemacs/languagetool-next-error (count)
(interactive "p")
(dotimes (_ count) (langtool-goto-next-error))
(when languagetool-show-error-on-jump (langtool-show-message-at-point)))
(defun spacemacs/languagetool-previous-error (count)
(interactive "p")
(dotimes (_ count) (langtool-goto-previous-error))
(when languagetool-show-error-on-jump (langtool-show-message-at-point)))
(defun spacemacs/languagetool-toggle ()
"Performs grammar and spell checking on the current buffer
using LanguageTool for grammar and flyspell for spell checking.
Flyspell errors will be cleared if the 'spell-checking' layer
is active as they add a lot of clutter."
(interactive)
(if (package-installed-p 'langtool)
(let* ((has-ran (bound-and-true-p langtool-mode-line-message))
(still-running
(and has-ran (equal ":run" (cadr langtool-mode-line-message)))))
;; Don't do anything while LanguageTool is still running
(unless still-running
;; Clear LanguageTool's errors if there is an active error overlay
(if has-ran
(langtool-check-done)
(progn
(langtool-check-buffer (spacemacs//languagetool-get-language))
(when (package-installed-p 'flyspell)
(flyspell-delete-all-overlays))))))
(error "LanguageTool has not been set up yet")))
(defun spacemacs//languagetool-detect ()
"Detects whether the LanguageTool binary exists."
(cond ((boundp 'langtool-java-classpath) t)
((boundp 'langtool-language-tool-jar)
(if (file-readable-p langtool-language-tool-jar)
t
(spacemacs-buffer/warning "LanguageTool binary not found")))
(t (spacemacs-buffer/warning "LanguageTool binary not set"))))
(defun spacemacs//languagetool-get-language ()
"Tries to parse the current spell checking language for a
usable locale string. This won't do anything if the
'spell-checking' layer is not active."
(let ((language (and (package-installed-p 'flyspell)
(or ispell-local-dictionary ispell-dictionary))))
(when language
;; We'll assume the language is either a locale or a named language (i.e.
;; "en_GB" or "english")
(let* ((locale (or (cadr
(assoc language ispell-dicts-name2locale-equivs-alist))
language))
;; ispell uses underscores in its locales, but LanguageTool expects a
;; dash (e.g. "en_US" => "en-US")
(langtool-code (replace-regexp-in-string "_" "-" locale)))
langtool-code))))